Subject:
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HB Simple Encoder Routines
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sun, 13 Apr 1997 16:50:11 GMT
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Original-From:
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Jeff Narducci <jnarducc@eecs(stopspam).uic.edu>
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Viewed:
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1456 times
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Hey everyone,
My partner and I are trying to use the sencdr?.icb and fencdr?.icb
routines to keep position measurements of a robotic arm. The encoders
are break beam and provide a signal of 4kHz max. We used 4 J-K flip
flops to reduce this frequency to 500 or 250Hz. Our problem is that
we continuously see different counts each time we sweep through a
joints range. We are resetting the count and we no what the correct
count should be. Another problem of ours is when the arm stops moving
the count continues to increase. Do we need to play with the threshold
limits?
Also is there any way to subtract from the count instead of adding?
Thanks for any suggestions. Jeff Narducci
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